Electrical indicating target with removable center section

ABSTRACT

A target has pairs of penetrable electrical conductive sheetlike elements that are flatwise opposed and spaced apart a distance to be transiently electrically connected by a penetrating projectile. Each pair corresponds to an annular scoring zone. Elements for radially outer scoring zones are on a permanent front sheet-like structure; those for inner ones are on a readily replaceable sheet-like structure installed behind the front one. To accommodate possible misalignment of the sheet-like structures the radially innermost elements on the front structure partially radially overlap the radially outermost ones on the rear one. Such overlapping elements cooperate for one scoring zone, and corresponding ones of them on the two structures are electrically interconnected.

United States Patent 1191 r 1111 3,854,722

ohlund et al. 1451 Dec. 17, 1974 4] ELECTRICAL INDICATING TARGET WITH3,396,971 8/1968 Estep 273/1024 REMOVABLE CENTER SECTION 3,454,2777/1969 Mura 273/1022 A 3,499,651 3/1970 Hubbard 273/1022 R [75]Inventors: Johan Alex lngvar Ohlund,

Huskvama; Mannerblad; Primary Examiner-Anton O. Oechsle Alexlus waugardboth of Assistant Examiner-Marvin Siskind Jonkopmg, all of Sweden [73]Assignee: Saab-Scania Aktiebolag, Linkoping, 57 T CT Sweden A target haspairs of penetrable electrical conductive 1 Filedl 1972 sheet-likeelements that are flatwise opposed and [21] APPL NO: 316 033 spacedapart a distance to be transiently electrically connected by apenetrating projectile. Each pair corresponds to an annular scoringzone. Elements for ra- [30] Foreign Application Priority Data diallyouter scoring zones are on a permanent front Dec.23, 1971 Sweden16554/71 Sheet-like Structure; those for inner Ones are a readilyreplaceable sheet-like structure installed be- 52 US. Cl 273/1022 A hindthe from To accommodate possible 51 Int. Cl F4lj 5 04 gnment of thesheet-like structures the radially 58 Field f Search 273/1022 R, 1022 A,nermost elements on the front structure partially radi- 1021(1273/1024;307/233;35/25 ally overlap the radially outermost ones onthe rear one. Such overlapping elements cooperate for one [56] R f r Citd scoring zone, and corresponding ones of them on the UNITED STATESPATENTS two structures are electrically interconnected.

2,695,173 11/1954 Sterne 273/1022 R 5 Claims, 4 Drawing Figures PAnNw3.854.722

. SHEET 1055 I F'IGJ.

PAIENT mam 1 mm sum 3 0F 2% v ELECTRICAL INDICATING TARGET WITHREMOVABLE CENTER SECTION This invention relates to a shooting targetintended for fire arms that discharge projectiles of electricallyconductive material, and which target is of the-kind that comprises atleast two electrically conductive sheets that are carried within aframe, one behind the other, spaced apart by a distance less than thelength of the projectile, with a sheet of dielectric material betweenthem. Each of the conductive sheets is connected through conductors toan electrically operated scoring device. One of the sheets is dividedinto area elements that are electrically insulated and laterally equallyspaced from one another so that they define a number of sensitive zoneswhich together define the target area, and each area element has its ownoutput conductor and represents one of a plurality of predetermined hitvalues so that the projectile, during its passage through the target,establishes an electric contact between one of the area elements of saidone sheet and the other sheet. The hit will be recorded by the scoringdevice as a value which is dependent upon the particular one of the areaelements that has been hit.

Targets of this kind are known through the Swiss patent specificationNo. 479,852 and the US. Pat. 3,539,828, among others, and systems forrifle ranges based on this automatic indicating method have also been anobject of industrial production during recent years. However, it has notbeen possible to fully utilize the advantages attained by these targetsin practice due to the tear to which the conducting sheets are subjectedin being repetedly penetrated by projectiles. Also in using newmaterials that afford improved durability to tear it has been found thatthere is an upper limit to the number of projectiles that can be firedagainst the target with faultless indications, but above that limitthere is a risk of an erroneous indication or none, due to projectiledamages to the conductive sheets.

To discard a whole target due to such a defect which is of local natureand can appear at an unforeseen point within that portion of the targetwhere the shots most frequently hit is expensive; but to repair thedefect by mending the conductive sheets at the damaged spot has'provedto be difficult because the sheets and their insulating bases are joinedwith one another. Furthermore, a repair of the target is not any lastingsolution of the problem since a new defect in the same target can beexpected to appear at another place. A previous suggestion to make sucha target with a joint which follows the border line between two sheetelements and divides the conductive sheets into two groups, of which theinner one would be exchangeable, has likewise not proved to be anyrational and reliable solution of the repairing problem.

Another disadvantage with the prior electrically selfindicating targetsis that there is no possibility of supplying a target with another typeof rings, zones or sectors than those previously used, in order to adaptthe division of the target area to the shooting program that isavailable and thereby reduce the store of targets for a rifle rangeplant.

The general object of the invention is to provide a target of the abovedescribed kind which need not be rejected by reason of a local damage ona central portion of the target where it is subjected to the mostintensive fire but which can easily and conveniently be repaired for anew use.

More particularly the object of the invention is to construct aprecision target of two separate units, one of which is exchangeablymounted on the other and each of which comprises sensitive zones, whichunits complement each other in their assembled position in such a waythat a predetermined clearing distance between the zones, related to thekind of projectile used, will be uniform between all the zonesirrespective of tolerances of and between the units, thereby preservingthe precision of the target.

The invention will be more fully explained in connection withaccompanying drawings where FIG. 1 is a perspective view of a riflerange having shooting targets embodying the invention.

FIG. 2 is a cross section view of a shooting target according to theinvention, the drawing scale being highly diminshed in the direction ofthe target plane.

FIG. 3 is an exploded perspective view illustrating the construction andthe electric connections in the embodiment shown in FIG. 2.

FIG. 4 is a diagram illustrating a part of the electric connection.

In FIG. 1 there is shown a rifle range having a number ofself-indicating target boards 11 for training and competition shootingwith small-bore guns. Each of the target boards can be supported in aconventional way by having its legs placed in receptacles attached tothe rear side of a protection wall 13. A target area having an aimingdot, a figure or some other visible marking to aim at is positionedwithin a target frame 14 to be exposed to the gunners at the shootingstation, while the crest of the wall protects the lower edge of theboard and an electric fitting mounted thereon and here shown insimplified form as a connector 15 with a signal cable 16 extendingtherefrom. For determining the positions of the hits scored, the targetarea is divided, in conformity with the shooting regulations availablefor the shooting that shall take place, into fields which are marked bydifferent values and which can be limited by concentric separating lines17; and, further, the target area can also be divided as indicated inthe example shown by radial sector lines 18, so that for a hit point notonly its value but also its direction in relation to the geometriccentre 19 of the board can be indicated. Such a division is made inknown manner by attaching Such the frame at least two parallelelectrically conductive sheets that are penetrable by the projectiles,from which sheets strips have been cut away representing the concentricseparating lines and radial sector lines, and from which sheetsconductors extend, one for each insulated area element of the targetarea, all leading to the connector 15. When a projectile penetrates thesheets, with the sheets at different electrical potentials, itestablishes during a short time a short-circuit. Through a pair ofconductors a signal is received in the cable 16 that extends to theshooting station and after the signal is decoded at that station anindication visible to the gunner is obtained on an indicator 20belonging to each target.

The structure of a target device of the above described kind, madeaccording to a preferred embodiment, appears more fully from FIGS. 2 and3, which show a precision target. The shooting direction is hereindicated by an arrow 21 and the parts are described in the order theyoccur in the target along this direction.

In front of the frame 14 there is a covering sheet 22 which is attachedby means of rivets that can be covered by strips 23. Nearest inside thecovering sheet, having an aiming dot or bullseye 24, there is a wipingsheet 25 that is glued to the frame and made from plastics or the like.The wiping sheet serves to wipe-off the oil or grease film which maycover the cylindrical surface of the projectile. A front unit followsthereafter which comprises the parts indicated by a bracket 1, viz. asector sheet 26 consisting in known manner of an electrically conductivesheet, e.g., made from electrically conductive rubber, and divided intosectors A H that are insulated from one another; further, anintermediate plate 27 of the same shape as the sector sheet, which platesupports the latter and is made from PVC foam or some other insulatingmaterial that is resistant to changes of form, light-weight andpenetrable by projectiles; further, a ring sheet 28 of the same materialas the sector sheet and having a size so adapted to the shootingregulations that a target area prescribed therein can be encompassedwithin the edges of the ring sheet. The ring sheet has its centralportion cut away, as is the case with the sector sheet 26, so that aninner edge is formed for a zone 6'. The ring sheet can be divided intoconcentric ring shaped area elements which are designated by scoringvalues, in the example 1 6. The rings are insulated from one another inthat strips have been cut out from the conductive sheet. Behind the ringsheet there is in unit I a base plate 30 on the rear side of whichvertically and horizontally extending guides 31 and 32, respectively,are fixed. The base plate and guides consist of insulating material andsupport downwardly extending conductive strips 33 33, one for each areaelement of the ring sheet 28, which strips are folded from the rear sideof the guides 31, round the edges of these, and are passed through slotsin the base plate 30 and in the ring sheet 28 on the front side of whichthe strips terminate in flaps 34. For reasons of space the strips 33, 33and 33 are applied on one of the guides whereas the strips for the rings2", 4 and for the zone 6 are applied on the other guide. Insulatingsheets 35, 36 respectively cover the strips on the rear sides and theinner edges of guides 31.

' The abovementioned pieces of material are joined with one another bygluing so that the circular inner edges 29 of the sector and the ringsheets 26 and 28 respectively coincide as seen in the shootingdirection. A centering device (not shown) placed in the geometric centerof the unit is used, after which the unit is attached, preferably bygluing, to the inside of the frame 14 where the outer frame members 37and cross-bars 38 extending in the plane of the target and joined withthe frame at its upper portion and along the sides, to-

gether form a rabbet which facilitates the assembly. In 7 joining thering sheet 28 with the plate 30 a conductive cement is applied to theflaps 34 so that each ring is electrically connected through theconductive-strips with connection members 39 in the form of rivetedcable clips positioned at the lower end outside the ring sheet. Also theportion of the target area positioned outside ring l can be providedwith an output line. Corresponding output leads 40 are further connectedwith the sector sheet 26 which in known manner has side strips 41 thatare drawn outside the target area defined by the ring sheet and extendfrom the upper sectors to the lower edge of the unit. Since theinsulating distance between the conductive sheets 26 and 28 is less thanthe length of the projectile used, a hit at every arbitrary point of thearea where the ring sheet and sector sheet cover each other establishesa contact of short duration between two of said connection members andthus produces an output due to difference of potential between ringsheet and sector sheet, which output is transmitted, through a sleevebox 42 mounted on the bottom member of the frame and a multi-core cable43 extending to the connector 15, to a register comprising logiccircuits and arranged in such a way that a signal is produced for eachsuch contact with the target, which signal unambiguously indicates thevalue of the shot as well as the sector position.

Behind the unit I there is a unit II comprising a sheet 44 havingconductive sectors a h, each provided with a sector strip 45 of the samematerial, and a centrum part 46 which here comprises an inner zone 6" ofthe ring 6" of the target, together with the central portion of thetarget, which is positioned inside the ring and divided in the usual wayinto area elements 7 10. As with the unit I, the conductive sheets areinsulated from one another and from parts rearwards of them by means ofa pair of plates of plastics 47 and 48. The plastic plate 48 is providedon its back with ring strips 49 49 that have their upper ends passedthrough said plastic plate and through the ring sheet 46 opposite totheir respective area elements and said strips, during assembly of theunit ll, have been electrically connected on the front side of the ringsheet with the area elements at the joint places designated by 50. Asusual there is within ring 10 a high value 10 or the inner-tencomprising the very center portion of the aiming dot, and here noindication of sector is required but a cut out has instead been made inthe sector sheet 44 which cut out has a circular edge 51, whose diameteris so chosen that scores which shall be related to the inner ten" freelypass inside the edge. To establish a short-circuit" also for such acenter shot there is a supplementing contact plate 52 positioned behindthe center of the insulating plate 48 and insulated on opposite sides,which contact plate cooperates with a logic circuit indicating thefailing contact with the sector sheet 44. A contact strip 53 passes fromthe contact plate at the side of the ring band 49 to the lower edge ofthe insulating base. Connected to each of the area elements of the unitIl there is a ring conductor 54 and a sector conductor 55 which havebeen assembled in a multi-core cable extending to a pin terminal 56 thatcan be releasably connected with the sleeve box 42. The unit isprotected on its rear side by an insulating sheet 57.

The electric connection of the target is such that the sector conductors55 will be connected in parallel with corresponding conductors 40 of thefront unit I, e.g.,

the sector a connected with the sector A, b with B and so on, and inaddition the conductor of the ring strip 49 which leads out from theinner zone 6" is connected in the sleeve box 42 to the strip 33 and thusto the outer zone 6 of the ring 6 belonging to the front unit, asappears from FIG. 4, which illustrates schematically the wiring diagramfor the sleeve box 42.

As appears from above description and from FIG. 2 the diameter of theopening in the ring sheet 28. deter mined by the edge 29, is smallerthan the diameter of the outer edge 58 of the centrum part 46 but largerthan the prescribed inner diameter of ring 6; and

since the other rings of the target either are located in the unit I orin the unit II there will thus be a duplication of the ring-indicatingconductive material for ring 6, which is a characterizing feature of theinvention. Within the target area of ring 6 i.e., the circular ring areaconfined inwardly by the edge 29 and outwardly by the edge 58, theprojectiles pass through the front as well as through the rear ringsheets while a projectile that passes immediately radially inwardly ofthe edge 29 only passes through the zone 6" of the rear unit and aprojectile that passes outside the circle ring 46 but still scores a 6hits the zone 6' of the front unit. By reason of this arrangement, thelimits of the 6 zone, or of such other area element where it may bedesirable to place the merge between the units of the target will not beaffected by the division of the target, but hits penetrating such areacan be scored with the same technics and with the same precision asthose striking within the limits of the other rings of the targetdespite the fact that there is within the ring in question a physicalborder between the units enabling an exchange of the central part of thetarget.

In order to obtain a mounting position of the rear unit II that isgeometrically correct and independent of projectile damages, that unitis adapted to fit into the space that is formed along the base 30between the guides 31 and 32, preferably in such a way that the sideedges 59 of the cemented plates 47 and 48 are fittingly guided by theguides 31 (see FIG. 2) while the upper edges 60 of the plates areadapted to engage the guide 32. This position is also determined by aholding means which, like other elements within the frame 14, shall bepenetrable by projectiles without being shattered and which preferablyis arranged to mutually fix the rear surface of the base 30 in relationto the opposing front surface of the sector sheet 44 and the plate 47.In the preferred embodiment the fixing is made by means of velcro stripsor similar self-fastening but detachable strip material which can beapplied on the two surfaces as a pair of strip parts positioned oppositeeach other. The drawing illustrates such fastening means applied at theguide 32 and the edge 59 as a horizontal strip 61' on the plate 30 whichcooperates with a strip extending along the upper edge of the sheet 44(inside the lug 65 of FIG. 3) as well as at the center of the targetwhere strips 62' and 62" are fastened to respective unit. The target isfinished at the rear by a covering frame 63 and a rear cloth 64stretched over the latter. I

When the target is to be repaired or its central part is to be exchangedfor one having a differently divided target area the covering frame 63is first removed after which the unit II together with its cabling 54 55and pin terminal 56 is dismounted. To release the fixing to the plate 30a pair of freely accessible lugs 65 of the abovementioned fixing stripsserving as handles are used. After a new rear unit is mounted on thefront unit in the position determined by the guides the target is readyfor further use.

It should be pointed out that the mutual position of the units seen inthe shooting direction is of significance to ensure a correct ring andsector indication over the whole target area. By placing the unit Icomprising the radially outer range of sensitivity of the target (thearea elements l to 6' inclusive) nearest to the gunner the signalling inthis whole range will be independent of which conducting strip or stripsreceive contact by the projectile in its continued passage through thetarget material since the registration on the output side will obviouslybe set by the first entering impulse while later erroneous impulses willbe of no effect. With a reverse mounting, i.e., in case the unitcomprising the inner range of sensitivity (the zone 6' to the inner teninclusive) were placed at the front of the target, a projectile whichfirst hit one of the downleading ring or sector strips 49 or 45 andwhich should rightly be scored as a hit in one of the outer rings, wouldon the other hand cause the register to be set to one of the high valueswithin the lastmentioned range of sensitivity or for an erroneous sectorposition. With the abovementioned correct arrangement, a projectilepassing through the conductive sheet first hit, i.e., in the zone 6',will establish, together with the sheet 26, when a hit is scored in theradial merging area between the two units, the effective shortcircuiting contact that causes correct registration in the hitindicating means of the plant.

The invention is obviously not limited to the above described embodimentbut comprises also target devices wherein the number of conductivesheets is more than two and the sheets have other target area divisionsthan rings and sectors, and comprises every other selfindicating targetof the type, including a target area divided into easily separable butcooperating units.

We claim:

1. A target at which electrically conductive projectiles are to be shotfrom a location in front of the target and which has defined scoringzones comprising a central zone within which shots are most desirablyplaced and a plurality of outer zones which lie at different distancesoutwardly from said central zone and each of which surrounds it, saidtarget being of the type comprising a plurality of pairs of cooperatingsheet-like electrically conductive elements that are penetrable by saidprojectiles, there being at least one of said pairs of elements for eachscoring zone and the two elements of each pair being flatwise spacedapart by a distance such that a projectile can be in electrically.connecting contact with both simultaneously during its penetration ofthem, said target also comprising means for electrically connecting eachof said pairs of elements with a scoring device that indicates theparticular pair of said elements that a projectile has penetrated, saidtarget being characterized by:

A. a frame large enough to embrace all of said zones;

B. first flat, thin carrier means substantially permanently fixed to theframe near the front thereof and carrying pairs of said elements for anouter portion of one of said outer scoring zones and for the whole ofall of the outer scoring zones farther out from the central zone thansaid one outer scoring zone;

C. second flat, thin carrier means having thereon pairs of said elementsfor the inner portion of said one outer scoring zone and for the wholeof all scoring zones inwardly of said one outer scoring zone;

D. readily releasable fastening means detachably supporting said secondcarrier means in the frame behind the first carrier means and edgewisein a position in which its said pairs of elements are substantially inregister with their respective scoring zones;

E. there being partial but substantial edgewise overlap between saidelements for the outer portion of said one outer scoring zone and saidelements for the inner portion thereof; and

F. corresponding ones of said overlapping elements on the two carriermeans being electrically interconnected so that accurate scoring isobtained of shots placed in the scoring zone for said overlappingelements and in the scoring zones adjacent thereto, notwithstanding anyedgewise misregister of the carrier means relative to one another.

2. A target at which electrically conductive projectiles are to be shotfrom a location in front of the target and which has means defining afront surface on which are delineated defined scoring zones comprising acentral circular zone and annular zones concentric to said circular zoneand surrounding the same, said target being of the type comprising aplurality of pairs of cooperating sheet-like electrically conductiveelements that are penetrable by said projectiles, there being at leastone of said pairs of elements for each scoring zone, the elements foreach scoring zone being rearwardly in register with their scoring zone,and the two elements of each pair being flatwise spaced apart by adistance such that a projectile can be in contact with bothsimultaneously during its penetration of them, to electrically connectthem, said target also comprising means for electrically connecting eachof said pairs of elements with a scoring device that indicates theparticular pair of said elements that a projectilehas penetrated, saidtarget being characterized by:

A. a frame on the front of which said means defining said front surfaceis affixed;

B. the pairs of elements for at least one radially outer scoring zonebeing carried on flat, thin carrier means substantially permanentlyaffixed to said frame rearwardly adjacent to said means defining saidfront surface, and said carrier means also carrying elements for theradially outer portion of a radially intermediate scoring zone;

C. the pairs of elements for the radially inner portion of said radiallyintermediate scoring zone and for the scoring zones radially inwardthereof being carried by another flat, thin carrier means;

D. means for readily detachably securing said other carrier means to theframe, behind the first mentioned carrier means and with the pairs ofelements on said other carrier means substantially concentric to thoseon the first mentioned carrier means;

E. the radially outer edge of said elements for the radially innerportion of said radially intermediate scoring zone having a diameterlarger than the inside diameter, but smaller than the outside diameter,of the elements for the radially outer portion of said zone so thatthose elements are in partial radially overlapping relationship; and

F. corresponding ones of the elements on the respective carrier meansthat are in such radially overlapping relationship being electricallyinterconnected.

3. The target of claim 2, further characterized by: G. one element ofeach of said pairs thereof being annular and being radially spaced asmall distance from its radially adjacent annular elements;

H. the other element of each of said pairs being substantially sectorshaped, extending circumferentially only partway aroundits cooperatingannular element, having similar sector shaped elements spaced smalldistances circumferentially to its opposite sides, and extendingradially across a plurality of annular elements, so that each annularelement can cooperate with a plurality of sectorshaped elements and eachsector-shaped element can cooperate with a plurality of annular elementsto provide an indication of both the annular scoring zone penetrated bya projectile and the circumferential portion of that zone that theprojectile penetrated.

4. The target of claim 2, further characterized by:

I. said means for radially detachably securing said other carrier meansto the frame comprising 1. rearwardly facing strips of self-adhesivematerial fixed to a portion of the frame, and

2. forwardly facing strips of cooperating selfadhesive material securedto said other carrier means.

5. A target at which electrically conductive projectiles are to be shot,said target being cooperable with a scoring device which can be locatedremotely from it and which responds to electrical signals from thetarget to produce indications of scoring results, said target beingcharacterized by:

A. a pair of cooperating plate-like carrier means in flatwise opposingrelation to one another, 1. one of said carrier means beingsubstantially permanently mounted and the other being in readilyremovably secured relation to it, 2. each of said carrier means carryinga. a plurality of concentric annular contact elements of penetrable,sheet-like electrically conductive material, each corresponding to ascoring zone, said annular contact elements being radially spaced apartby small, uniform distances, and

b. other contact elements of such conductive material, flatwise spacedfrom said annular elements by a distance such that a projectilepenetrating an annular element and its flatwise adjacent other elementelectrically connects them with one another;

B. means providing for electrical connection of each of said contactelements with a scoring device;

C. the radially innermost annular contact element on said one carriermeans having an inside diameter smaller than the outside diameter of theradially outermost annular contact element on said other carrier meansbut having an outside diameter larger than said outside diameter of saidradially outermost annular contact element, so that the two lastmentioned contact elements are in partial radially overlapping relationto one another and both correspond to the same scoring zone; and

D. means electrically interconnecting the two last mentioned contactelements.

1. A target at which electrically conductive projectiles are to be shot from a location in front of the target and which has defined scoring zones comprising a central zone within which shots are most desirably placed and a plurality of outer zones which lie at different distances outwardly from said central zone and each of which surrounds it, said target being of the type comprising a plurality of pairs of cooperating sheet-like electrically conductive elements that are penetrable by said projectiles, there being at least one of said pairs of elements for each scoring zone and the two elements of each pair being flatwise spaced apart by a distance such that a projectile can be in electrically connecting contact with both simultaneously during its penetration of them, said target also comprising means for electrically connecting each of said pairs of elements with a scoring device that indicates the particular pair of said elements that a projectile has penetrated, said target being characterized by: A. a frame large enough to embrace all of said zones; B. first flat, thin carrier means substantially permanently fixed to the frame near the front thereof and carrying pairs of said elements for an outer portion of one of said outer scoring zones and for the whole of all of the outer scoring zones farther out from the central zone than said one outer scoring zone; C. second flat, thin carrier means having thereon pairs of said elements for the inner portion of said one outer scoring zone and for the whole of all scoring zones inwardly of said one outer scoring zone; D. readily releasable fastening means detachably supporting said second carrier means in the frame behind the first carrier means and edgewise in a position in which its said pairs of elements are substantially in register with their respective scoring zones; E. there being partial but substantial edgewise overlap between said elements for the outer portion of said one outer scoring zone and said elements for the inner portion thereof; and F. corresponding ones of said overlapping elements on the two carrier means being electrically interconnected so that accurate scoring is obtained of shots placed in the scoring zone for said overlapping elements and in the scoring zones adjacent thereto, notwithstanding any edgewise misregister of the carrier means relative to one another.
 2. forwardly facing strips of cooperating self-adhesive material secured to said other carrier means.
 2. each of said carrier means carrying a. a plurality of concentric annular contact elements of penetrable, sheet-like electrically conductive material, each corresponding to a scoring zone, said annular contact elements being radially spaced apart by small, uniform distances, and b. other contact elements of such conductive material, flatwise spaced from said annular elements by a distance such that a projectile penetrating an annular element and its flatwise adjacent other element electrically connects them with one another; B. means providing for electrical connection of each of said contact elements with a scoring device; C. the radially innermost annular contact element on said one carrier means having an inside diameter smaller than the outside diameter of the radially outermost annular contact element on said other carrier means but having an outside diameter larger than said outside diameter of said radially outermost annular contact element, so that the two last mentioned contact elements are in partial radially overlapping relation to one another and both correspond to the same scoring zone; and D. means electrically interconnecting the two last mentioned contact elements.
 2. A target at which electrically conductive projectiles are to be shot from a location in front of the target and which has means defining a front surface on which are delineated defined scoring zones comprising a central circular zone and annular zones concentric to said circular zone and surrounding the same, said target being of the type comprising a plurality of pairs of cooperating sheet-like electrically conductive elements that are penetrable by said projectiles, there being at least one of said pairs of elements for each scoring zone, the elements for each scoring zone being rearwardly in register with their scoring zone, and the two elements of each pair being flatwise spaced apart by a distance such that a projectile can be in contact with both simultaneously during its penetration of them, to electrically connect them, said target also comprising means for electrically connecting each of said pairs of elements with a scoring device that indicates the particular pair of said elements that a projectile has penetrated, said target being characterized by: A. a frame on the front of which said means defining said front surface is affixed; B. the pairs of elements for at least one radially outer scoring zone being carried on flat, thin carrier means substantially permanently affixed to said frame rearwardly adjacent to said means defining said front surface, and said carrier means also carrying elements for the radially outer portion of a radially intermediate scoring zone; C. the pairs of elements for the radially inner portion of said radially intermediate scoring zone and for the scoring zones radially inward thereof being carried by another flat, thin carrier means; D. means for readily detachably securing said other carrier means to the frame, behind the first mentioned carrier means and with the pairs of elements on said other carrier means substantially concentric to those on the first mentioned carrier means; E. the radially outer edge of said elements for the radially inner portion of said radially intermediate scoring zone having a diameter larger than the inside diameter, but smaller than the outside diameter, of the elements for the radially outer portion of said zone so that those elements are in partial radially overlapping relationship; and F. corresponding ones of the elements on the respective carrier means that are in such radially overlapping relationship being electrically interconnected.
 3. The target of claim 2, further characterized by: G. one element of each of said pairs thereof being annular and being radially spaced a small distance from its radially adjacent annular elements; H. the other element of each of said pairs being substantially sector shaped, extending circumferentially only partway around its cooperating annular element, having similar sector shaped elements spaced small distances circumferentially to its opposite sides, and extending radially across a plurality of annular elements, so that each annular element can cooperate with a plurality of sector-shaped elements and each sector-shaped element can cooperate with a plurality of annular elements to provide an indication of both the annular scoring zone penetrated by a projectile and the circumferential portion of that zone that the projectile penetrated.
 4. The target of claim 2, further characterized by: I. said means for radially detachably securing said other carrier means to the frame comprising
 5. A target at which electrically conductive projectiles are to be shot, said target being cooperable with a scoring device which can be located remotely from it and which responds to electrical signals from the target to produce indications of scoring results, said target being characterized by: A. a pair of cooperating plate-like carrier means in flatwise opposing relation to one another, 